Machine for shaping metal troughs and tubes.



H. NOWAK.

MACHINE FOR.SHAP|NG METAL TROUGHS AND TUBES.

APPLICATION FILED MAY 14, 1915.

1,187,374. I Patented June 13, 191? 2 SHEETS-SHEET 1.

H. N0 WAK.

MACHINE FOB SHAPING METAL TROUGHS AND TUBES.

APPLICATION FILED MAY 14, 1915.

1 51611161 June 13, 1916.

2 SHEETS-SHEET 2.

I 1 1. v h I o \IIII'III 1 II In I] .1 I 1.. g

HERMAN NOWAK, OF BRIDGEPORT, INDIANA.

MACHINE FOR SHAPING METAL TROUG-HS AND TUBES.

Specification of Letters Patent.

Patented June 13, 1916.

Application filed May 14, 1915. Serial No. 27,995.

To all whom it may concern Be it known that I, HERMAN NowAK, a

v citizen of the United States, residing at Bridgeport, in the county ofMarion and State of Indiana, have invented certain new and usefulImprovements in Machines for Shaping Metal Troughs and Tubes, of whichthe following is a specification.

My invention relates to machines for bending and shaping sheetmetal'material so as to particularly form tubing or pipes oreavestroughs or gutters.

Among the objects of the invention, I aim to provide a finalconformation to the material together with suitable roller means toprovide finishing or connecting beads, flanges, or the like; to providea die means to roll the material into tubular form having lock flangesto-.

gether with a mandrel or arbor over which the tube passes afterformation; 'to especially provide means to interlock the said flanges,and means to expand the tubes after interlocking of said flanges priorto completion of the tube as a final product.

Also I aim to provide a machine having a tube forming die together withremovable supporting means, whereby the die may be removed and agutter-forming die substituted.

With the foregoing as well as additional objects such as'willhereinafter appear, in view, the invention resides in the novel detailsof construction, arrangement and combination of the parts as illustratedin the accompanying drawings. of one preferred form.

In said drawings :Figure 1 is a top or 7 plan view of the machine; Fig.2 is a side elevation; Fig. 3 is a central longitudinal sectional viewalong the line 38 of Fig. 1; Fig. 4 is a cross sectional view on theline 44 of Fig. 1, with the supporting beams omitted but showing tubingin the process of manufacture; Fig. 5 is a fragmentary side elevation'ofswaging means which may be employed; Fig. 6 is a detail perspective viewof the pipe-forming die; Fig. 7 is a fragmentary detail illustratingcorrugating means which may be employed, and .Fig. 8 is a perspectiveview of the die member and supporting means used in the manufacture ofguttering.

die means to roll the materialfed through the machine may cooperate withsuitable dies or shapers to impart the general Referring specifically tothe drawings, the operating mechanism of the machine may be mounted froma su'ftlble base, for instance, longitudinal side beams 1. At the feedend of the machine, are mounted from the beams 1, side walls 2 which arespanned by and mount a suitable form of feed table 3. Also in walls 2are mounted as bearings, a power or drive shaft 4 and an auxiliary shaft5 parallel therewith and also in the same vertical plane. On the shafts4 and 5 are mounted suitable rollers 6. Adjacent the rollers 6 are alsomounted vertically alined shafts 7 and 8 in the walls 2. The shaft 8 hasmounted thereon a concave shaping roller 9 while the shaft 7 has mountedthereon a convex shaping roller 10. Shaft 4 is driven from any suitablesource of power as by a belt (not shown) which may cooperate with afixed pulley 11 and a loose pulley 12 both mounted on the shaft. Also afly wheel 18.niay be mounted on said shaft 4. In addition, shaft 4 has agear wheel 14 keyed thereto which meshes with a gear wheel 15 keyed toshaft 5. Gear wheel 15 meshes with a gear wheel 16 which is an idler andmounted from a stub shaft 17 extending from one side plate 2, andmeshing with a 'fed from table 3 between the rollers 6 and then guidedbetween the rollers 7 and8 which results in convexing the material aswill be seen by the dotted lines at 25 in Fig. 4 which represents thematerial. One longitudinal edge of this dished material passes betweenthe rollers 22 which results in the provision of a lock flange 26 at oneside of the material as seen in Fig. 4. At the other longitudinaledge-of the material, it passes between therollers 23 and 24 to providea lock flange 27 as also seen in said Fig. 4. It will bev noted thatroller 23-is substantially conical in order that it may properly bedisposed between the flange 27 and remainder of the material ,in theprocess of manufacture.

Second side plates 28 are fastened to the beams 1 and a supportingbracket 29 spans the plates 28 and is removably fastened thereto as byset-screws 29. Bracket 29 in its upper surface, has a concavity 30 inwhich is seated adie 31 of the form shown in Fig. 6 and which isfastened to the bracket by means of bolts 31. This die is shaped so asto provide the slot 33 adjacent its frustum end and angular edges 34leading from the slot 33 to the base end of the die. Mounted at the topof the plates 28, is a bridge or cover plate 35 fastened in place bymeans of set-screws 36. Brackets 37 are fastened to one end of the plate35 by means of setscrews 38 which pass-through elongated slots 39 of thebrackets and which permit adjustment of the brackets relatively to thecentral longitudinal vertical plane ofthe machine. One bracket 37 mountsa roller 40 adjacent one end of the die 31, which roller 40 isfrusto-conical and has its frustum uppermost. The other bracket 37mounts a roller 41 substantially similar in shape to the roller 40 butwith its frustum lowermost.

Roller 40 is preferably disposed in a lower the lock flanges 26 and 27,after passing between the rollers 22, 23 and 24, passes into the die 31and the flanges 26 and 27 overlap the exterior of the die at edges 34.As the material advances, the interior shape of the die curls. or rollsit substantially into the shape of a tube, but having the flanges 26 and27 on the exterior of the die. At the proper stage of advancement,flange 26 is engaged and guided by roller 40, while flange 27 is engagedand guided by roller 41 over the flange 26, whence it may interlockinglyengage said flange 26. Suitable means have been provided to expand thematerial at this stage which may be in the form of a substantiallycylindrical arbor or mandrel 42, preferably provided with a taperedreceiving end 43.' This mandrel is supported by grooved shaping rollers44, 45 and 46. Said rollers 44, 45 and 46 also serve to draw the tubingover the mandrel. As saidtubing passes over the tapered portion 43, sameis pulled into tight relation. Above the mandrel 42 is disposed aseaming roller 47 having a groove 48, see Fig. 1, which presses theflanges 26 and 27 into tight locked relation. As the tube passes betweenrollers 45 and 46, theseam at the junction of the flanges is practicallyrolled out and the tube is practically atrue cylinder. Roller44 isprefer ably mounted on a shaft 49 journaled in standards 50 in whicha-shaft 51 is also journaled and on which the seaming roller 47 iskeyed. Beyond the seaming roller, on opposite sides thereof, guideplates for the material designated 52 are keyed. Rollers 45 and 46 maybemounted from shafts 53 journaled in standards 54.

In order to drive shaft 51 from shaft 4, sprocket gear wheels 4 and 51are respec tively mounted on these shafts and" a sprocket chain 4trained over the sprocket wheels. Since a sprocket wheel 51 is mountedon shaft 51 and a similar wheel 53 is mounted on upper shaft 53, and asprocket chain 53"v passes over these wheels, shaft 53 is driven fromshaft 51. Shaft 51 drives shaft 49 through the meshing of gear wheels 49and 49 on these respective shafts, while upper shaft 53 drives lowershaft 53 as gear wheels 46 and 46 on the shafts 53, mesh.

After the cylindrical tubing has passed rollers 45 and 46, it mayfurther pass through a suitable swage or swedge, for instance, that ofthe type shown at A. This type, preferably, hasv a plurality ofradiating arms 55 which bear directly against the tubing and which arepivoted as at 56 and yield against the tension of springs as at 57. Sucharms 55 enable the material to be readily removed from the machine,especially when made in a plurality of sections, since one section canbe removed without interference with another.

It may be desired to corrugate the tubing,

in which event, I prefer to use the meansshown in Fig. 7 and which iscarried by a plate 58. This plate 58 has side ribs 59 which mayremovably slideinto grooves 60.

of plates 54. A ring'61 is .positioned on plate 58 by means of'brackets62 and on this ring a suitable number of corrugating rollers 63 may bejournaled so as to directly engage the tubing which should pass througha central opening 64 of plate 58.

In some instances, it maybe desired to form guttering with the machine,in which event, bracket 29 and die 31 are removed and the bracket 65 ofFig. 8 substituted and also mandrel 66 of Fig. 8 substituted for mandrel43. Bracket 65 carries a die 67, the interior wall of which is tapered.The material is passed through this die 67 with flanges overlapping itsside edges and which are engaged for beading by rollers 68 journaled onarms 69 of the bracket 65. expanded so that lock flanges 26 and 27 areSince merely the preferred embodiment of the invention has beenillustrated and described, it is to be understood that changes in thedetails of construction may-be resorted to within the spirit and scopeof the appended claims.

I claim 1. In a machine of the class described,

shaping means, means to form flanges on material shaped by the shapingmeans, a die through which the material passes, means to interlockflanges formed on the material, a

mandrel to be engaged by the material, and seaming means for theinterlocked flanges cooperating with the mandrel.

2. In a machine of the class described, a die provided with alongitudinally disposed slot, means to pass material through the die,

means to form the flanges on the material, a

supporting structure for the die, rollers to interlock the flangesmounted on the supporting structure, and means operating to thereafterexpand the material.

3. In a machine of the class described, a

supporting structure, shaping rollers supported therefrom, flangeforming rollers sup- I ported from said structure, a second supportingstructure, a die carried by the second supporting structure, rollers toengage the flanges of material passing through the die to interlock theflanges mounted from the second supporting structure, and a mandrelcooperating with the die and last men tioned rollers.

In testimony whereof I aflix my signature in presence of two witnesses.

HERMAN NOWAK.

Witnesses:

H. KLIME, FRANK E. HERZ.

